Lubricator



April 8, 1930. 5, PAXTON 1,753,718

LUBRIGATOR Filed May 7, 1929 Invenon Sherman H. Pxom l Patented Apr.` 1936 UNITEDSTATES PATENT err-lcs suman n. P Ax'ron, or Los Antennas, cannoni-ra, Ass'IeNoa ro an muncruanrc co., or Los mantas, camoama, a, conrona'rron or cama-cama LUBMCATOR application mcd May 7, 199.9.' Serial No. 861,121. i

This invention relates/to an apparatus for 'lubricating the cylinders of internal combustion engines, and the principal object is to provide a lubricator in which .there isa main su ply chamber adapted to hold aconsider- 1115v crease the eiicicncy of the lubricator to supply saturated air tthe engine cylinder which 1s accomplished b supplying a simple means for circulating e lubricant so as to cause an effective mixing with the air. In other $0 words/I provide a pump for transferringthe lubricant from the main chamber into a pan with the latter so arranged that the overflow lubricant falls back with a splash into the lubricant in the main chamber and when so circulated is caused to mix withthe air.

A feature of invention is shown in the construction, arrangement and operation of the pum which, when in operation, is constantly t owing drops of lubricant out of th'e 3 pump windows into the supply pan so that a mixing of the air and lubricant 1s effected. a

Another object of the invention is to provide a lubricator with an air inlet control,

havin an indicator scale with means con- `necte thereto for regulating the inlet of air pro rtional to thesuction on the lubricator ou et sg that the metering pin of the outlet mi be set relative to the metering pin of the et. o Other` features of invention may appear from the accompanying drawings, the sub- ]'oined detailed description and the appended claims.

The accompanying drawings illustrate the invention.

` Fig. 1 is a central vertical section through a luhricator constructed in accordance with this invention. Y

Fig. 2 is a cross section: on the line 2 2;

5 Fig. 1, showing the arrangement of the sup- 23 g. 5 is a fragmental side view of the pump detached from the lubricator showing one of the side windows.

Fig. 6 is another fragmental view of the pump showing an edge view of both side win- OWS.

Fig. 7 is a central vertical section of the pump in Fig. 6, showing a detailed construc-4 tion of the` pump.

Fig. 8 is a cross section on line 8-8, Fig. 7 Fig. 9 is another cross section on line 99,

Fig. 7, showing the ports arranged to disf charge the lubricant out through the pump windows. l

Fig. 10 is a central vertical section through I the metering air inlet plug. Fig. 11 is aview analogous to Fig. 10 showing` an altered position of the meter piston.. ig. 12 is a diagrammatic view ofthe lubricat'or connected to the inlet manifold of an.

engine not shown; also showing in section a fragmental art of a vehicle dash-board to which the lu ricator is usually attached.

The lubricator includes a housing 10 havv ing lugs 11 that can be secured to a .dashboard 12 to the body or frame of a vehicle in a position where it is preferably aboveithe' level of the inlet manifold 13 of an engine;

and the housing is connected to the manifold by a pipe 14, as indicated in Fi 10.

A container, preferably a g ass jar 15, is secured to the bottom of the housing 10 so that it pinches a gasket 16 and metal plate 17 up against a shoulder 18 in the housing so as to form a gas-tight fit.

The plate 17 is provided with an upward- -ly extending overiiow wall 19 around an opening 20 therethiough and this wall, together with the pla e 17 and the inner wall 2l of the housing f rm a pan for holding a predetermined amount of lubricant above the main supply of lubricant 22 inthe chamber A pump 24 is arranged in an upper chamber in the housing l0 in position to pump lubricant from the chamber 23 up into the pan to maintain a constant level therein, which level is at the top of the wall 19 sothat any excess lubricant raised by the pump will run over the wall 19 and fall through the opening 20 back into the chamber 23. c

There are two purposes for transferring the lubricant from the chamber to the pan; and the irst is to maintain a constant level in the pan adjacent to the outlet from the lubricator so that a relatively even uniform ilow of the lubricant saturated air to the engine Vcylinders can be accomplished without 1ncreasing the suction which isnecessary if the fuel level is gradually decreased as heretofore in appliances of this nature.

The second purpose is to circulate the lubricant so as to cause a more satisfactory mixture of air and lubricant. This is accomplished by causing the overflow of lubricant from the pan to fall back through the air current passing from the lower chamber 23 through the opening 20 into the upper chamber 25.

In other words the overflow lubricant falls with a splash on to the top surface of the lubricant in the chamber 23 and in falling passes downward through an upwardly flowing air current so that part of this moving' lubricant remains in the air to form a mixture suitable for lubricating the engine cylinders, and by the foregoing means a very thorough and satisfactory mixing of air and lubricant is accomplished.

The pump 24 includes a cylinder 27 having -its upper end closed by a plug 28 that has a hollow threaded stem 29 secured in a socket 30 in a boss 3l so that the passage 32 through the stem opens into a suctlon chamber 33 in the boss 3l, and as thus secured the stem holds the pump suspended in the lubricator.

` The lower end of the cylinder 27 is closed by a plug 34 to which the upper end of the draw pipe 35 is secured. This pipe extends down throu h the opening 20 with its lower end suspended adjacent the bottom of the container 15; and a ball check valve 36 is arranged in its lower end, with a stop 37 above it. The purposes of the check valve and sto are well known.

piston 38 is arranged in the cylinder 27 so that it can be reciprocated between" the plugs to lift the lubricant from the chamber 23 and discharge it into the fuel level pan. The p/iston 38 has a hollow upper head 39 in which a spring 40 is seated and this spring normally acts to force the piston downward toward the plug 34; and the piston is llfted against the spring 40 by suction through the passage 32. The piston 38 also has a lowerhead 41 1n which a check valve 42 is arranged to hold the lubricant from flowing downward when lifted through the passage 43 to a position above this valve. A stop 44 is arranged above the ball 42 to limit its upward movement. The piston is provided with two oppositely arranged ports 45 through which the lubricant is discharged from the valve chamber 4G and when so discharged it is thrown outwardly through oppositely arranged windows 47 inl the cylinder to fall into the fuel level pan.

J ust'above the pump 24- and iitted against the lower end of the ribs 47 are two 'fine mesh wire screens 48 that separate the space in the housing in to upper and lower chambers 25 and 4S); and these screens are adapted to prevent heavy particles of the lubricant from being carried by suction into the discharge outlet passage 50 that leads from the chamber 49 into the chamber Y A screw actuated metering pinv 51 is provided -for controlling the discharge of saturated'air through the passage. 50. A lock nut 52 is provided for holdingfthe pin 5l in a fixed position when properly adj usted.

Adjacent the chamber the housing 10 is provided with a boss in which a threaded bushing 54 is secured for the pipe' iitting 55 to which one end of the pipe 14 is secured so that intermittently the chamber in said'housing is subjected to suction when 'the engine is rumnng.

Air is admitted to the lubricator through the metering plug 56 that is secured in .the upper end of the housing l0 so that Iair passing into the plug can be drawn dowmvard by suction through the pipe 57 so fit. will bubble up through the lubricant 22in the chamber 23, the pipe being suspended so that its discharge endis adjacent the bottom of the container l5; also this pipe extends through the opening 20 inthe fuel level pan.

'lhe metering plug 56 includes a ybarrel 5S in which a piston 59 is arranged to move upward against the spring 60 that has one end seated in a recess in the pistonand the other end secured 1o an adjusting screw 61 that is held in adjusted position by a locknut 62 that screws down on a cap 63 that closes the upper end of the barrel.

'lhe that air entering the inlet passage 65 can circulate entirely around the part G4 to help lift upward on the shoulder (fof the piston to force it toward the spring when suction through the center passage (S7 causes a vacuum in the spring' chamber 68.

A guide pin (it), secured to the part 64, is extended through the passage (55, and in addition to guiding the piston and holding it from rotation in the barrel, also functions as a pointer for the scale that indicates the amount of suction that is applied to the piston 59.

A bushing 71 is secured in the lower end of the barrel 58 and has a passage 72 there through that has its upper end normally piston has a reduced portion 64 so closed by the lower end of the part 64, as shown in Fig. 10; and extending downward from the part 64 is a metering in 73 that controls the passage of air throu the bushing 7l to the pi e 57. The pin 3-is tapered with its free en the largest so that the higher the iston is lifted b suction the less air will e admitted into t e lubricator and vice versa. The bushing 71 can be replaced by another one having either a larger or smaller assage 72 so that either an increased or reuced sup ly of air can be obtained additional to t e adjustment of the screw 61.

The scale 7 0 is provided so that the metering pin 5l and screw 61 ,can be adjusted relainlet of air through the plug 56 and a proper discharge of saturated air from the lubricator.

ln operation the lubricator is connected to an automobile so that it is above the level of the inlet manifold of the en ine as indicated in Fig. 12; then whenl t e en 'ne is operating'v suction through pipe 14 wil draw olf saturated air from the chamber 49y to lubricate the engine cylinders. Then the netering pin 51 and screw 61 are adjusted to apply the proper suction to the lubricator to intake air, operate the pump and sup ly the saturated air to the en ine eiciently and economically; and in a justing those arts the scale and pointer pin will aid in etermining their proper positions.

When the proper suction is applied to the lubricator the pump will be operated to maintain a constant level in the pan, and also cir-.

culate the lubricant soas to elfect a very satisfactory mixture of the air and lubricant as previously indicated.

l claim as my invention:

l. A lubricator including a housing having a chamber therein, a'I pipe connection from said housing to the inlet manifold of an engine whereby said chamber is intermittently subjected to suction when the engine is operated, a container secured to the lower end of said housing, a pan in` said housing, an overflow wall to sa1d`pan that is arran ed around an opening through said pan, an a ump in sald housing that is actuated by suction from the engine'k for transferring lubricant from said container to maintain a constant level in said pan.

2. A lubricator including a housing having ing, a pump suspended in said housing, a piston in said pump that is lifted by suction to transfer. lubricant from said container to said pan, other means for reversely movin said piston, and means connected withsai pan whereby thp' excess lubricant lifted by said -pum} is discharged back into said container. tive to one another so as to permit a proper 4.

tween said housing and said container, an. overflow wall surroundingv an opemng through said an,a pump in said housing for transferring ubricant from said container to maintain a constant level in said an, a dis# charge outlet from said housing t at is connected by a pipe with the inlet manifold of an en e, and adjustable means for controlling t e outlet from said housing.

5.' In a lubricator the combination of a housing having an air inlet, a metering pin for regulating the flow of air through said inlet, a container secured to said housing that is adapted to hold a quantity of lubricant, a pan interposed between said housing and container, an overflow wall surrounding an opening through said pan, a pump in said housing for maintaining a constant level of lubricant in said pan, means for actuating said pump, said means including a pipe connection from an outlet from said housing to the inlet manifold of an engine for lifting a piston in said pump, and a spring for reversely moving said piston, and another metering pin for controlling the outlet from said housing.

v6. In a lubricator the combination of a housing, acontainer secured thereto that is adapted to hold` a quantity of lubricant, means in connection with said housing and container for supplying a mixture of air and lubricant to the cylinder of an engine, a metering plug for regulating the intake of air into said ousing, a barrel to said plug,'a piston in said plug that normally closes a passage into said housing, and means wherey suction in said housing raises said piston to open the inlet passage.

7 .I In a lubricator the combination of a housing, a container secured thereto that is adapted to hold a quantity of lubricant, means in connection with said housing and container for supplying a mixture of air and lubricant to the cylinders of an engine, a metering plug for regulating the intake of air into said housing, a barrel to said plug,

' a piston in said barrel, a spring for Iholding said pist-on in position to normally close a passage int-o said housing, a metering pin on said piston for regulating said passage, and Ineans whereby suction in said housing moves said piston against the 'tension of said spring` to open said passage and move said metering p in in position to regulate the amount of air flowing through said passage.

8.In a lubricator the combination of a housing, a container secured thereto that is adapted to hold a quantity of lubricant, a pump in said housing for circulating said lubricant from said container to a pan in said housing, a pipe connection from said housing to the inlet manifold of an engine whereby suction can coaet with a spring to actu-ate said pump, a metering plug for conf trolling and regulating the intake of air into said housing, a barrel to said plug, a piston' in said barrel that is arranged to normally close a passage into said housing a pin for holding said piston from rotation in said barrel, means whereby suction in said housing will lift said piston to open said passage, and a scale adjacent said pin for indicating the amount of suction on said piston.

9. Infa lubrieator the combination of a housing, a container secured thereto, a pan interposed between said housing and con,` tainera pump in said housing for transferring lubricant from said container to maintain a constantlevel in said pan, means for actuating said pmnp,'said means including a pipe connection from an outlet from said housing tothe inlet manifold of an engine, a metering pin controlling the suction from said manifold to said housing, a meter plug for regulating and controlling the inlet of air to said housing, and a scale in connection with said plug for indicating the amount of suction in said housing, whereby said metering pin at said outlet can be adjusted relative to said scale.

10. A lubricator including a lubricant con tainer, a pan above it having an overflow opening communicating with the container, and means for causing air to move into the container and through the overflow opening in'the pan so that the air will become charged with lubricant.

11. A lubricator including a lubricant container to the lower part of which air is admitted, a pan above the container with an overflow opening so the overflow will return down to the container, means for keeping' the pan filled to overflowing with lubricant from the container, and suction means for causing the air from the container to pass up through said pan overflow opening and become charged with lubricant.

12. A lubricator including a lubricant container, a housing detaehably mounted upon said container, a separable pan located be- 

